Answered

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how many moles of iron are in 250 g

Sagot :

Space

Answer:

4.5 mol Fe

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Chemistry

Atomic Structure

  • Reading a Periodic Table
  • Using Dimensional Analysis

Explanation:

Step 1: Define

250 g Fe

Step 2: Identify Conversions

Molar Mass of Fe - 55.85 g/mol

Step 3: Convert

[tex]\displaystyle 250 \ g \ Fe(\frac{1 \ mol \ Fe}{55.85 \ g \ Fe} ) = 4.47628 \ mol \ Fe[/tex]

Step 4: Check

Follow sig fig rules and round; given 2 sig figs.

4.47628 mol Fe ≈ 4.5 mol Fe

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